... 3,can operate 12-15Hrs by battery 4,with controller solar fan1, 12V, or 100V-240V voltage 2, Power:22W3, 3 speed settings ... Current[Isc]:2.54 8,Maximum System Voltage:1000VDC 9,Number of Cells:36Battery1,Battery:12V,24Ah 2,Dimensions :,181*174*166 ... *126mm 3,Weight:7.8kg 4,Duration time:10-12HRScontroller1,solar charge controller:12V,10A 2,size:133×70×34mm 3,Net Weight ...